Blizzard has released a new update to the game's Public Test Realm (PTR) with several changes to adjust game balance for a handful of characters, but none more so than the games latest addition, Orisa.

The new hero is yet to be formally introduced to the game, but has been available on the PTR for the past week.

In that time Blizzard has deemed the character slightly too powerful and as such has nerfed the character ever so slightly as they aim to find the sweet spot before rolling the character out properly.

According to the latest changes, Orisa weapon magazine size has decreased from 200 to 150, while the cost for her Ultimate, Supercharged, has also increased by 15 per cent.

In addition to this, there have also been a few big changes to Ana, who's also been nerfed slightly.

Ana's Biotic Rifle now does 60 damage (previously 80), while the Biotic Grenade's damage has also decreased from 60 to 30.

If that wasn't enough the grenade's healing powers are less effective, dropping from 100 right down to 50.

New Overwatch Hero: Orisa screenshots

Take a quick look at the new Overwatch Hero, Orisa

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“As we iterate on the PTR patch, we are going to be trying out the following hero changes,” a message from Blizzard explains.

“These should be up on the PTR very soon, hopefully tomorrow morning. As always these updates are subject to change.”

There have been a flurry of changes and tweaks made via the PTR servers over the past week, with none more so than for the character of Bastion.

The most controversial change has seen Bastion takes 20 per cent less damage while in Configuration: Sentry or Tank (formerly 35%).

According to a Blizzard developer, the change was necessary because: “After introducing the new Ironclad passive ability in the last patch, Bastion felt a little too difficult to deal with.

“This reduction maintains his survivability while he’s transformed, but he shouldn’t feel so overbearing to enemies.”

A full list of recent patch notes can be found below.

OVERWATCH PTR PATCH NOTES

Ana

Biotic Rifle

Damage decreased from 80 to 60

Biotic Grenade

Impact damage reduced from 60 to 30

Impact healing reduced from 100 to 50

Junkrat

No longer hurts himself from his own explosions. (Effect added to current passive: Total Mayhem)